Well quiet naturally both animal and human testing are both very controversial and involve great deal of ethics.
<span>The type of plant cell that provides support without interfering with growth and is familiar as the "strings in celery" is a </span>collenchyma cell
A gamete is a haploid cell, a cell with only one pair of chromosomes. Say the skin cell of a human has 46 chromosomes (2 pairs), a gamete would have 23 chromosomes (1 pair) because gametes are sex cells. When a sex cell (Egg and sperm) come together, they together will create a dipole cell (46 chromosomes, 2 pairs).
Mutation of proto-oncogene leads to cancer, but tumor suppressor gene prevents it.
Cancer will be spread out because of tumor suppressor gene (P53) mutation.
the place of P53 is 17th gene(to be specific 17p13.1).
The statement that best describes a human influence on the biogeochemical cycles is : A. Increased eutrophication caused by high levels of nitrogen and phosphorous
In this process, the amount of nutrients in water will dramatically increased, creating abnormal growth for the algae
hope this helps